away chris stovens and three other americans in benghazi, libya. sources say u.s. intense knew in 24 hours that it was a terrorist attack with possible limps to al qaeda. addressing the nation after the morning after the deadly siege president obama said this. >> no act of terror will shake the resolve of this great nation. or change that change or eclipse the light of the values we stand for. today we mourn for more americans who represent the very best of the united states of america. >>shepard: an acknowledgment this was a terror attack? you decide. what we know is in the days that followed, the message from the administration was very clear. >> based on what we know, and now, and knew at the time, we have no evidence of a pre-planned or premeditated attack. >> it was a spontaneous reaction to what had just transpired in cairo as a consequence of the video. >>shepard: that was the ambassador to the united nations referring to an antiislam video that want viral. she said the same thing on all five sunday morning television shows. top administration officials now